Gentlemen..
i purchased on Ebay a little set of Gage Blocks, when i opened the box some were found to be a little rusty, cannot complain only paid $20 including shipping, anyways i digress some have little rust blotches on and it interferes with the fit and the overall size as well as you can imagine, is there a way to remove the build up of the rust that will eat it away and leave just the ground block intact, i know i will still have pits but i don't really care i am just trying to make these useful.
Just a thought....... suggestions??
Anthony.
I use a saturated solution of vinegar and table salt. You must apply some form of protection immediately after cleaning the items when removed from the vinegar solution or flash rusting will occur.
I prefer this method to electrolysis.
Chuck
My favorite rust removal product is called Evapo-Rust. Non-toxic, water clean up and will not harm any finish (unless the finish uses oxides like gun bluing, etc.)
Can be found at some auto parts or home improvement stores. It's a bit on the expensive side but a gallon will go a long way as it is reusable.
Here's a link to their site:
http://www.evaporust.com/
-Ron
So you guys do realize that acid dissolves metal, right? Weak acids don't dissolve much, but since we are dealing with millionths of an inch here that might not be a good idea unless you want to re-label them for size.
I'd go with electrolysis.
Tom
Just asking a question. Does electrolysis (which is on my to try list) not remove ANY of the none oxidized material?
If so COOL
As far as I know Greg, that is true. Once the oxides are gone the process stops. I've used it before and only the rusty areas bubbled.
Tom
Greg if you take a look at my shaper thread you will see the parts I zapped. The rusty areas will be black/grey afterwards but will polish up. I'm posting on my phone right now, otherwise I would link to the post/pics
(10-01-2013, 09:12 PM)TomG Wrote: [ -> ]So you guys do realize that acid dissolves metal, right? Weak acids don't dissolve much, but since we are dealing with millionths of an inch here that might not be a good idea unless you want to re-label them for size. I'd go with electrolysis.
Tom
On bigger stuff I plan to get set up for using electrolysis even though it's a bit of a mess. Until then, the Evapo-rust works just as well. It's not an acid and won't attack the metal.
-Ron